Environmental Geotechnical Construction Materials Testing Threshold and Special Inspections Plan Review & Code Compliance

Transcription

1 Since 1988 Florida s Leading Engineering Source Environmental Geotechnical Construction Materials Testing Threshold and Special Inspections Plan Review & Code Compliance Mr. Richard H. Thompson, P.E. City of Fort Myers, Engineering Division 2200 Second St. Fort Myers, Florida September 7, 2018 RE: South Street Property: Organic Matter Sampling and Analysis 3348 South Street Fort Myers, Lee County, Florida FDEP ID: COM_ GFA Project No Dear Mr. Thompson: Per your request, GFA is please to provide this letter reporting the organic matter sampling and analysis performed at the reference project site. On August 31, 2018 GFA personnel collected samples of vegetative organic matter (grasses, weeds and leaves) and wooden organic matter (tree trunks) for laboratory analysis of Arsenic. 10 randomly selected locations at the project site were identified as areas to collect representative vegetative and wooden organic matter samples. Equal portions of organic matter was collected from each location into 1-gallon plastic bags. Vegetative matter was collected by using a clean knife blade to cut grass, weeds and leafy vegetation. After collecting vegetative matter at the 10 locations, the vegetative matter was composited and processed using a clean hand-held food processing blender, which fine cut and blended the vegetative matter into composite sample VGC-1. The wooden matter was collected by using a 1-inch wood bit or paddle bit, drilled approximated ¾-inch into the various tree trucks at the 10 sample locations. Tree wood cuttings and dust were collected into a 1-gallon plastic bag during drilling. After collecting wood shaving and dust at the 10 locations, the sample was thoroughly mix into composite sample TW-1. Organic matter samples were collected into laboratory supplied glass containers and immediately placed on wet-ice for transport under strict chain-of-custody to a NELAC accredited analytical laboratory for analysis of Arsenic following United States Environmental Protection Agency (EPA) Method On September 6, 2018, GFA received the attached analytical laboratory report from Advanced Environmental Laboratories, Inc. (AEL). Arsenic was not detected in any the organic matter samples above the laboratory method detection limit of 0.10 mg/kg. The residential default exposure soil cleanup target level for Arsenic is 2.1 mg/kg, according to Chapter , F.A.C., Table II Country Lakes Drive Fort Myers, Florida (239) (239) (fax) DELRAY BEACH BOCA RATON FORT MYERS STUART ORLANDO JACKSONVILLE TAMPA MIAMI BELLE GLADE

2 South Street Property, COM_ September 7, 2018 GFA File # Page 2 of 2 Based on the lab results of the organic matter samples collected at the project site, the organic matter, vegetative ground cover and wood trees have not been significantly impacted by the Arsenic contaminated lime residual deposited at the project site. Should you have any questions, please do not hesitate to contact the undersigned at (239) Thank you for using GFA for you engineering consulting needs. Sincerely, GFA INTERNATIONAL, INC. Scott A. McManus, P.G. Environmental Department Manager Attachments: Advanced Environmental Laboratories, Inc. Report, September 6, 2018.

3 September 6, 2018 Scott McManus GFA International 5851 country Lakes Dr Fort Myers, FL RE: Dear Scott McManus: Enclosed are the analytical results for sample(s) received by the laboratory on Friday, August 31, Results reported herein conform to the most current NELAC standards, where applicable, unless otherwise narrated in the body of the report. The analytical results for the samples contained in this report were submitted for analysis as outlined by the Chain of Custody and results pertain only to these samples. If you have any questions concerning this report, please feel free to contact me. Sincerely, Enclosures Report ID: Page 1 of 7

4 SAMPLE SUMMARY Lab ID Sample ID Matrix Date Collected Date Received F TW-1 Soil 8/31/ :30 8/31/ :28 F VGC-1 Soil 8/31/ :30 8/31/ :28 Report ID: Page 2 of 7

5 ANALYTICAL RESULTS Lab ID: F Date Received: 08/31/18 16:28 Matrix: Soil Sample ID: TW-1 Date Collected: 08/31/18 10:30 Results for sample F are reported on a dry weight basis. Sample Description: Location: Parameters Results Qual Units DF Adjusted PQL Adjusted MDL Analyzed Lab METALS Analysis Desc: SW B Analysis,Soils Preparation Method: SW B Analytical Method: SW Arsenic 0.10 U mg/kg /4/ :08 T METALS Analysis Desc: Percent Solids,SM2540G,Soil Analytical Method: SM 2540G Percent Moisture 34 % /5/ :07 T Lab ID: F Date Received: 08/31/18 16:28 Matrix: Soil Sample ID: VGC-1 Date Collected: 08/31/18 10:30 Results for sample F are reported on a dry weight basis. Sample Description: Location: Parameters Results Qual Units DF Adjusted PQL Adjusted MDL Analyzed Lab METALS Analysis Desc: SW B Analysis,Soils Preparation Method: SW B Analytical Method: SW Arsenic 0.10 U mg/kg /4/ :13 T METALS Analysis Desc: Percent Solids,SM2540G,Soil Analytical Method: SM 2540G Percent Moisture 75 % /5/ :07 T Report ID: Page 3 of 7

6 ANALYTICAL RESULTS Lab ID: F Date Received: 08/31/18 16:28 Matrix: Soil Sample ID: VGC-1 Date Collected: 08/31/18 10:30 Results for sample F are reported on a dry weight basis. Sample Description: Location: Report ID: Page 4 of 7

7 ANALYTICAL RESULTS QUALIFIERS PARAMETER QUALIFIERS U I The compound was analyzed for but not detected. The reported value is between the laboratory method detection limit and the laboratory practical quantitation limit. LAB QUALIFIERS T DOH Certification #E84589(AEL-T)(FL NELAC Certification) Report ID: Page 5 of 7

8 QUALITY CONTROL DATA QC Batch: QC Batch Method: DGMt/2192 SW B Associated Lab Samples: F , F Analysis Method: SW Prepared: 09/04/ :00 METHOD BLANK: Blank Parameter Units Result METALS Silver mg/kg Arsenic mg/kg Barium mg/kg Cadmium mg/kg Chromium mg/kg 0.10 Lead mg/kg Selenium mg/kg Reporting Limit Qualifiers U U U U 0.10 U U U QUALITY CONTROL DATA QUALIFIERS QUALITY CONTROL PARAMETER QUALIFIERS U I The compound was analyzed for but not detected. The reported value is between the laboratory method detection limit and the laboratory practical quantitation limit. Report ID: Page 6 of 7

9 QUALITY CONTROL DATA CROSS REFERENCE TABLE Lab ID Sample ID Prep Method Prep Batch Analysis Method Analysis Batch F TW-1 SW B DGMt/2192 SW ICPt/1686 F VGC-1 SW B DGMt/2192 SW ICPt/1686 F TW-1 SM 2540G WCAt/5833 F VGC-1 SM 2540G WCAt/5833 Report ID: Page 7 of 7

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